Earliest fossils of giant-sized bony-toothed birds (Aves: Pelagornithidae) from the Eocene of Seymour Island, Antarctica

doi:10.1038/s41598-020-75248-6

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	Earliest fossils of giant-sized bony-toothed birds (Aves: Pelagornithidae) from the Eocene of Seymour Island, Antarctica
	Kloess, Peter A.1,2; Poust, Ashley W.1,2,3; Stidham, Thomas A.4,5,6
	2020-10-26
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	10 期号:1 页码:11
通讯作者	Kloess, Peter A.(pakloess@berkeley.edu) ; Poust, Ashley W.(apoust@sdnhm.org) ; Stidham, Thomas A.(presbyornis@gmail.com)
摘要	While pelagornithid or 'bony-toothed' bird fossils representing multiple species are known from Antarctica, a new dentary fragment of a pelagornithid bird from the middle Eocene Submeseta Formation on Seymour Island, Antarctica represents a species with a body size on par with the largest known species in the clade. Measurements from the partial 'toothed' dentary point to a giant body size for the species, although the spacing among the pseudoteeth differs from that published for other pelagornithids. The discrepancy might suggest that previous techniques are not adequate for examination of incomplete material or that another factor such as phylogeny might impact size estimates and comparisons. Combined with a revised stratigraphic position in the early Eocene La Meseta Formation on Seymour Island for the largest pelagornithid tarsometatarsus known, these Antarctic fossils demonstrate the early evolution of giant body size in the clade (by similar to 50 Ma), and they likely represent not only the largest flying birds of the Eocene but also some of the largest volant birds that ever lived (with an estimated 5-6 m wingspan). Furthermore, the distribution of giantsized pelagornithid fossils across more than 10 million years of Antarctic geological deposits points to a prolonged survival of giant-sized pelagornithids within the southern seas, and their success as a pelagic predatory component of marine and coastal ecosystems alongside early penguins.
DOI	10.1038/s41598-020-75248-6
收录类别	SCI
语种	英语
资助项目	UC Museum of Paleontology Student Support Fund ; Integrative Biology GRAC Travel Funds ; National Natural Science Foundation of China[NSFC 41772013]
项目资助者	UC Museum of Paleontology Student Support Fund ; Integrative Biology GRAC Travel Funds ; National Natural Science Foundation of China
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000615370600018
出版者	NATURE RESEARCH
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/18700
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Kloess, Peter A.; Poust, Ashley W.; Stidham, Thomas A.
作者单位	1.Univ Calif Berkeley, Dept Integrat Biol, Berkeley, CA 94720 USA 2.Univ Calif Berkeley, Museum Paleontol, Berkeley, CA 94720 USA 3.San Diego Nat Hist Museum, Dept Paleontol, San Diego, CA 92182 USA 4.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 5.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Kloess, Peter A.,Poust, Ashley W.,Stidham, Thomas A.. Earliest fossils of giant-sized bony-toothed birds (Aves: Pelagornithidae) from the Eocene of Seymour Island, Antarctica[J]. SCIENTIFIC REPORTS,2020,10(1):11.
APA	Kloess, Peter A.,Poust, Ashley W.,&Stidham, Thomas A..(2020).Earliest fossils of giant-sized bony-toothed birds (Aves: Pelagornithidae) from the Eocene of Seymour Island, Antarctica.SCIENTIFIC REPORTS,10(1),11.
MLA	Kloess, Peter A.,et al."Earliest fossils of giant-sized bony-toothed birds (Aves: Pelagornithidae) from the Eocene of Seymour Island, Antarctica".SCIENTIFIC REPORTS 10.1(2020):11.